<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>首页</title>
  <link rel="stylesheet" href="./bootstrap/bootstrap.min.css" />
  <link rel="stylesheet" href="./bootstrap/bootstrap-icons.css" />
  <link rel="stylesheet" href="./css/common.css" />
  <style>
    .card-stats .bi {
      width: 50px;
      height: 50px;
      display: block;
      background-color: #e4e4e4;
      color: #fff;
      border-radius: 50%;
      line-height: 50px;
      text-align: center;
      font-size: 24px;
      margin-top: 4px;
    }
  </style>
</head>

<body class="application application-offset">
  <div class="container-fluid container-application">
    <div class="sidenav show" id="sidenav-main">
      <!-- Sidenav header -->
      <div class="sidenav-header d-flex align-items-center">
        <a class="navbar-brand" href="./index.html">
          <span class="logo">·ITCAST·</span>
        </a>
      </div>
      <!-- User mini profile -->
      <div class="sidenav-user d-flex flex-column align-items-center justify-content-between text-center">
        <!-- Avatar -->
        <div>
          <a href="#" class="avatar rounded-circle avatar-xl">
            <img alt="Image placeholder" src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg"
              class="" />
          </a>
          <div class="mt-5">
            <h5 class="mb-0 text-white">黑马前端</h5>
            <span class="d-block text-sm text-white opacity-8 mb-3">数据可视化</span>
            <a href="javascript:;" class="btn btn-sm btn-white btn-icon rounded-pill shadow hover-translate-y-n3">
              <span class="btn-inner--text">学前端来黑马</span>
            </a>
          </div>
        </div>
      </div>
      <!-- Application nav -->
      <div class="nav-application clearfix">
        <a href="./index.html" class="btn btn-square text-sm active">
          <span class="btn-inner--icon d-block"><i class="bi bi-house bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">首页</span>
        </a>
        <a href="./student.html" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-people bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">学生</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-columns bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">排版</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-files bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">资料</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-receipt bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">就业</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-gear bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">设置</span>
        </a>
      </div>
      <!-- Misc area -->
      <div class="card bg-gradient-warning">
        <div class="card-body">
          <h5 class="text-white">哈喽, 朋友!</h5>
          <p class="text-white mb-4">为什么不现在开始学习前端，创造一些令人惊叹的东西呢？</p>
          <a href="http://itcast.cn" class="btn btn-sm btn-block btn-white rounded-pill" target="_blank">Get started</a>
        </div>
      </div>
    </div>
    <div class="main-content position-relative">
      <nav class="navbar navbar-main navbar-expand-lg navbar-dark navbar-border" id="navbar-main">
        <div class="container-fluid">
          <!-- Navbar nav -->
          <div class="collapse navbar-collapse navbar-collapse-fade" id="navbar-main-collapse">
            <ul class="navbar-nav align-items-lg-center">
              <!-- Home  -->
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 首页 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 传智教育 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 黑马程序员 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 文档 </a>
              </li>
            </ul>
            <!-- Right menu -->
            <ul class="navbar-nav ml-lg-auto align-items-center d-none d-lg-flex">
              <li class="nav-item dropdown dropdown-animate">
                <a class="nav-link pr-lg-0" href=".dropdown-menu" role="button" data-toggle="dropdown"
                  aria-haspopup="true" aria-expanded="false">
                  <div class="media media-pill align-items-center">
                    <span class="avatar rounded-circle">
                      <img alt="Image placeholder"
                        src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg" />
                    </span>
                    <div class="ml-2 d-none d-lg-block">
                      <span class="username mb-0 text-sm font-weight-bold">Admin</span>
                    </div>
                  </div>
                </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" id="logout" href="javascript:;"> 退出 </a>
              </li>
            </ul>
          </div>
        </div>
      </nav>
      <div class="page-content">
        <!-- Page Title -->
        <div class="page-title">
          <div class="row justify-content-between align-items-center">
            <div class="col-md-6 mb-3 mb-md-0">
              <h5 class="h3 font-weight-400 mb-0 text-white">Dashboard</h5>
              <span class="text-sm text-white opacity-8">上海前端 xx 期</span>
            </div>
          </div>
        </div>
        <!-- charts -->
        <div class="row">
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">就业薪资</h6>
                    <span name="salary" class="h3 font-weight-bold mb-0 ">15500</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-coin"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">班级人数</h6>
                    <span name="student_count" class="h3 font-weight-bold mb-0 ">80</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-people"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">平均年龄</h6>
                    <span name="age" class="h3 font-weight-bold mb-0 ">24.40</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-calendar2-week"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <!-- Card body -->
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">小组个数</h6>
                    <span name="group_count" class="h3 font-weight-bold mb-0 ">8</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-collection"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div class="row">
          <div class="col col-xl-8">
            <div class="card" id="line" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="salary" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-12">
            <div class="card" style="height: 400px;">
              <div class="card-header">
                <div class="d-flex justify-content-between align-items-center">
                  <h6 class="mb-0">班级每组薪资</h6>
                  <div id="btns">
                    <button type="button" class="btn btn-xs btn-blue">1</button>
                    <button type="button" class="btn btn-xs ">2</button>
                    <button type="button" class="btn btn-xs ">3</button>
                    <button type="button" class="btn btn-xs ">4</button>
                    <button type="button" class="btn btn-xs ">5</button>
                    <button type="button" class="btn btn-xs ">6</button>
                    <button type="button" class="btn btn-xs ">7</button>
                    <button type="button" class="btn btn-xs ">8</button>
                  </div>
                </div>
              </div>
              <div class="card-body p-0" id="lines"></div>
            </div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="gender" style="height: 500px;"></div>
          </div>
          <div class="col col-xl-8">
            <div class="card" id="map" style="height: 500px;"></div>
          </div>
        </div>
        <!-- footer -->
        <div class="footer pt-5 pb-4 footer-light" id="footer-main">
          <div class="row text-center text-sm-left align-items-sm-center">
            <div class="col-sm-6">
              <p class="text-sm mb-0">© 2022 <a href="https://itcast.cn" class="h6 text-sm" target="_blank">前端学科</a>.
                All rights reserved.</p>
            </div>
            <div class="col-sm-6 mb-md-0">
              <ul class="nav justify-content-center justify-content-md-end">
                <li class="nav-item">
                  <a class="nav-link" href="#">Support</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link" href="#">Terms</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pr-0" href="#">Privacy</a>
                </li>
              </ul>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <script src="./bootstrap/bootstrap.min.js"></script>
  <script src="./lib/axios.js"></script>
  <script src="./lib/echarts.min.js"></script>
  <script src="./js/common.js"></script>
  <script src="./lib/china.js"></script>
  <script src="./js/permission.js"></script>
  <script>
    let groupData
    async function getData() {
      // 发请求获取数据
      // axios({ 配置对象 })  配置对象 => config
      const res = await axios({
        url: '/dashboard',
        // 携带请求头
        // headers: {
        //   Authorization: localStorage.getItem('token')
        // }
      })
      console.log(res)

      // 渲染概览区域
      setOverview(res.data.overview)

      setSalary(res.data.year)

      setClassSalary(res.data.salaryData)

      // 存储到全局
      groupData = res.data.groupData
      setGroupSalary(res.data.groupData[1])

      setGenderSalary(res.data.salaryData)

      setMap(res.data.provinceData)
    }
    
    getData()
    
    // 设置概览区域
    function setOverview(data) {
      // 获取元素渲染数据
      // document.querySelector('[name=salary]').innerHTML = data.salary
      // document.querySelector('[name=student_count]').innerHTML = data.student_count
      // document.querySelector('[name=age]').innerHTML = data.age
      // document.querySelector('[name=group_count]').innerHTML = data.group_count
      // console.log(Object.keys(data))
      Object.keys(data).forEach(k => document.querySelector(`[name=${k}]`).innerHTML = data[k])
    }

    // 设置薪资走势图
    function setSalary(data) {
      // 初始化 echarts
      const myChart = echarts.init(document.querySelector('#line'))

      // 准备 option
      const option = {
        title: {
          text: '2021全学科薪资走势',
          textStyle: {
            fontSize: '16px'
          },
          left: '10px',
          top: '15px'
        },
        xAxis: {
          type: 'category',
          data: data.map(item => item.month), // 取出数据中的 month 属性, 映射到一个新数组返回
          axisLabel: {
            color: '#999'
          },
          axisLine: {
            lineStyle: {
              color: '#ccc',
              type: 'dashed'
            }
          },
        },
        yAxis: {
          type: 'value',
          splitLine: {
            show: true,
            lineStyle: {
              type: 'dashed' // 分割线改为虚线
            }
          }
        },
        grid: { // 绘图网格距离上面组件距离(高度百分比)
          top: '20%',
        },
        tooltip: {
          trigger: 'axis'
        },
        series: [
          {
            data: data.map(item => item.salary),
            type: 'line',
            smooth: true,
            symbolSize: 10,
            lineStyle: {
              width: 6,
              color: { // 填充的颜色, 支持纯色和渐变色
                type: 'linear', // 线性渐变
                // 起始点是左上角
                x: 0, // x 轴起点
                y: 0, // y 轴起点
                x2: 1, // x 轴终点
                y2: 0, // y 轴终点
                colorStops: [{
                    offset: 0, color: '#499fee' // 0% 处的颜色
                }, {
                    offset: 1, color: '#5d75f0' // 100% 处的颜色
                }],
                global: false // 缺省为 false
              }
            },
            areaStyle: { // 折线图的填充设置
              color: { // 填充的颜色, 支持纯色和渐变色
                type: 'linear', // 线性渐变
                // 起始点是左上角
                x: 0, // x 轴起点
                y: 0, // y 轴起点
                x2: 0, // x 轴终点
                y2: 1, // y 轴终点
                colorStops: [{
                    offset: 0, color: '#499fee' // 0% 处的颜色
                }, {
                    offset: 0.8, color: 'rgba(255,255,255,0.2)' // 0% 处的颜色
                }, {
                    offset: 1, color: 'rgba(255,255,255,0)' // 100% 处的颜色
                }],
                global: false // 缺省为 false
              }
            }
          }
        ]
      };

      // 设置 option
      myChart.setOption(option)
    }

    // 设置班级薪资图
    function setClassSalary(data) {
      const myChart = echarts.init(document.querySelector('#salary'))
      const option = {
        title:{
          text: '班级薪资分布',
          top: 15,
          left: 10,
          textStyle: {
            fontSize: 16
          }
        },
        color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'], // 改变饼图的颜色
        tooltip: {
          trigger: 'item'
        },
        legend: {
          bottom: '6%',
          left: 'center'
        },
        series: [
          {
            name: '班级薪资分布', // 提示的名称
            type: 'pie', // 饼图
            center: ['50%', '45%'], // 饼图圆心的位置
            radius: ['50%', '64%'], // 半径, 内圆半径, 外圆半径
            // avoidLabelOverlap: false, // 提示标签是否自动调整位置避免遮挡
            itemStyle: { // 每一个条目的样式
              borderRadius: 10, // 圆角
              borderColor: '#fff', // 边框颜色
              borderWidth: 2 // 边框粗细
            },
            label: {
              show: false, // 是否显示标签
              position: 'center' // 标签显示的位置
            },
            emphasis: { // 中间的提示信息
              label: { 
                show: false, // 标签是否显示
                fontSize: 80, // 标签的大小
                fontWeight: 'bold' // 是否加粗
              }
            },
            labelLine: {
              show: false // 是否显示标签连接线
            },
            data: data.map(item => ({ name: item.label, value: item.g_count + item.b_count }))
            // data: [
            //   { value: 1048, name: 'Search Engine' },
            //   { value: 735, name: 'Direct' },
            //   { value: 580, name: 'Email' },
            //   { value: 484, name: 'Union Ads' },
            //   { value: 300, name: 'Video Ads' }
            // ]
          }
        ]
      };
      myChart.setOption(option)
    }

    // 设置每组薪资
    function setGroupSalary(data) {
      const myChart = echarts.init(document.querySelector('#lines'))
      const option = {
        grid: {
          // 修改绘制网格的属性
          left: 70,
          top: 30,
          right: 30,
          bottom: 50
        },
        color: [
          {
            type: 'linear',
            x: 0,
            y: 0,
            x2: 0,
            y2: 1,
            colorStops: [
              {
                offset: 0,
                color: '#34D39A' // 0% 处的颜色
              },
              {
                offset: 1,
                color: 'rgba(52,211,154,0.2)' // 100% 处的颜色
              }
            ]
          },
          {
            type: 'linear',
            x: 0,
            y: 0,
            x2: 0,
            y2: 1,
            colorStops: [
              {
                offset: 0,
                color: '#499FEE' // 0% 处的颜色
              },
              {
                offset: 1,
                color: 'rgba(73,159,238,0.2)' // 100% 处的颜色
              }
            ]
          }
        ],
        tooltip: {
          // trigger: 'axis'
        },
        xAxis: {
          type: 'category',
          data: data.map(item => item.name),
          axisLabel: {
            color: '#999'
          },
          axisLine: {
            lineStyle: {
              color: '#ccc',
              type: 'dashed'
            }
          }
        },
        yAxis: {
          type: 'value',
          splitLine: {
            show: true,
            lineStyle: {
              type: 'dashed' // 分割线改为虚线
            }
          }
        },
        series: [
          {
            data: data.map(item => item.hope_salary),
            type: 'bar',
            name: '期望薪资'
          },
          {
            data: data.map(item => item.salary),
            type: 'bar',
            name: '就业薪资'
          }
        ]
      };
      myChart.setOption(option)
    }

    // 事件委托: 点击后高亮并切换数据
    document.querySelector('#btns').addEventListener('click', e => {
      if (e.target.tagName === 'BUTTON') {
        // 没有数据就不要改变高亮并切换数据了, 等有数据了在处理
        if (!groupData) return
        // console.log('被点了')
        // 干掉现有的, 给自己加上 btn-blue
        document.querySelector('#btns .btn-blue').classList.remove('btn-blue')
        e.target.classList.add('btn-blue')
        // 取出当前被点击的按钮数字
        const i = e.target.innerHTML
        // console.log(i, groupData[i])
        setGroupSalary(groupData[i])
      }
    })

    // 设置男女薪资分布
    function setGenderSalary(data) {
      const myChart = echarts.init(document.querySelector('#gender'))
      const option = {
        title: [
          {
            text: '男女薪资分布',
            left: 10,
            top: 10,
            textStyle: {
              fontSize: 16
            }
          },
          {
            text: '男生',
            left: '50%',
            top: '45%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12
            }
          },
          {
            text: '女生',
            left: '50%',
            top: '85%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12
            }
          }
        ],
        tooltip: {
          trigger: 'item'
        },
        color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
        series: [
          {
            type: 'pie',
            radius: ['20%', '30%'],
            center: ['50%', '30%'],
            datasetIndex: 1,
            avoidLabelOverlap: true, // 提示标题位置太小挤在一起时是否自动位移
            label: {
              show: true
            },
            labelLine: {
              show: true
            },
            // 期望的数据格式: [ { name: '', value: '' } ]
            // 现有的数据格式: [ { label: '', g_count: '', b_count: '' } ]
            data: data.map(item => ({ name: item.label, value: item.b_count }))
          },
          {
            type: 'pie',
            radius: ['20%', '30%'],
            center: ['50%', '70%'],
            datasetIndex: 2,
            avoidLabelOverlap: true, // 提示标题位置太小挤在一起时是否自动位移
            label: {
              show: true
            },
            labelLine: {
              show: true
            },
            data: data.map(item => ({ name: item.label, value: item.g_count }))
          }
        ]
      };
      myChart.setOption(option)
    }

    // 设置籍贯分布
    function setMap(data) {
      const myEchart = echarts.init(document.querySelector('#map'))
      
      // 将 dataList 的数据 value 属性修改成 data 中的 value 属性
      const dataList = [
        { name: '南海诸岛', value: 0 },
        { name: '北京', value: 0 },
        { name: '天津', value: 0 },
        { name: '上海', value: 0 },
        { name: '河北', value: 0 },
        { name: '重庆', value: 0 },
        { name: '河南', value: 0 },
        { name: '云南', value: 0 },
        { name: '辽宁', value: 0 },
        { name: '黑龙江', value: 0 },
        { name: '湖南', value: 0 },
        { name: '安徽', value: 0 },
        { name: '山东', value: 0 },
        { name: '新疆', value: 0 },
        { name: '江苏', value: 0 },
        { name: '浙江', value: 0 },
        { name: '江西', value: 0 },
        { name: '湖北', value: 0 },
        { name: '广西', value: 0 },
        { name: '甘肃', value: 0 },
        { name: '山西', value: 0 },
        { name: '内蒙古', value: 0 },
        { name: '陕西', value: 0 },
        { name: '吉林', value: 0 },
        { name: '福建', value: 0 },
        { name: '贵州', value: 0 },
        { name: '广东', value: 0 },
        { name: '青海', value: 0 },
        { name: '西藏', value: 0 },
        { name: '四川', value: 0 },
        { name: '宁夏', value: 0 },
        { name: '海南', value: 0 },
        { name: '台湾', value: 0 },
        { name: '香港', value: 0 },
        { name: '澳门', value: 0 },
      ]

      // 目标: 将 dataList 中的数据修改成 data 中的数据
      // 步骤:
      // 1. 遍历 data 中所有的对象
      // 2. 在遍历的过程中去 dataList 查找对应的对象
      // 3. 修改找到的对象 value 属性即可
      data.forEach(item => {
        // console.log(item)
        const result = dataList.find(obj => item.name.includes(obj.name))
        // console.log(result)
        result.value = item.value
      })

      const option = {
        title: {
          text: '籍贯分布',
          top: 10,
          left: 10,
          textStyle: {
            fontSize: 16,
          },
        },
        tooltip: {
          trigger: 'item',
          formatter: '{b}: {c} 位学员',
          borderColor: 'transparent',
          backgroundColor: 'rgba(0,0,0,0.5)',
          textStyle: {
            color: '#fff',
          },
        },
        visualMap: {
          min: 0,
          max: 6,
          left: 'left',
          bottom: '20',
          text: ['6', '0'],
          inRange: {
            color: ['#ffffff', '#0075F0'],
          },
          show: true,
          left: 40,
        },
        geo: { // 地理坐标系组件
          map: 'china',
          roam: false,
          zoom: 1.0,
          label: {
            normal: {
              show: true,
              fontSize: '10',
              color: 'rgba(0,0,0,0.7)',
            },
          },
          itemStyle: {
            normal: {
              borderColor: 'rgba(0, 0, 0, 0.2)',
              color: '#e0ffff',
            },
            emphasis: {
              areaColor: '#34D39A',
              shadowOffsetX: 0,
              shadowOffsetY: 0,
              shadowBlur: 20,
              borderWidth: 0,
              shadowColor: 'rgba(0, 0, 0, 0.5)',
            },
          },
        },
        series: [
          {
            name: '籍贯分布',
            type: 'map',
            geoIndex: 0,
            data: dataList,
          },
        ],
      }

      myEchart.setOption(option)
    }
  </script>
</body>

</html>